Vibronic contributions to resonant NLO responses: two-photon absorption in push-pull chromophores
Chemical Physics
2009-11-07 v1
Abstract
Two-photon absorption (TPA) spectra of push-pull chromophores are described in terms of a two-state model accounting for electron-vibration coupling. Vibrations have two main effects in TPA spectra. The most obvious one is the appearance of a vibrational structure in the spectrum; in this respect we find large Herzberg-Teller contributions. The second effect was not recognized so far: vibrational states contribute a new channel to TPA process, that shows up with a blue-shift and a distortion of the spectrum. Vibrational-channel contributions to other NLO responses are shortly discussed.
Keywords
Cite
@article{arxiv.physics/0106085,
title = {Vibronic contributions to resonant NLO responses: two-photon absorption in push-pull chromophores},
author = {Anna Painelli and Luca Del Freo and Francesca Terenziani},
journal= {arXiv preprint arXiv:physics/0106085},
year = {2009}
}
Comments
10 pages including 3 figures